0000916457-15-000030 8-K 4 20150512 5.02 7.01 9.01 20150513 20150512 CALPINE CORP 0000916457 4911 770212977 DE 1231 8-K 34 001-12079 15855857 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 8-K 1 cpn_8kxofficerannouncement.htm 8-K EX-99.1 2 exhibit991-may122015.htm EXHIBIT 99.1 DATED MAY 12, 2015 GRAPHIC 3 cpnimage1a03.jpg CALPINE LOGO GRAPHIC 4 image0a02.gif CALPINE LOGO